Home / 99,077.00-148,428.65-76,781.39

Finding the Fourth Proportional to 99,077.00, 148,428.65 and 76,781.39

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Solution

The fourth proportional to 99,077.00, 148,428.65 and 76,781.39 is: 115,027.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,077.00 : 148,428.65 = 76,781.39 : x
  2. Step 2: Convert to fraction form
    99,077.00/148,428.65 = 76,781.39/x
  3. Step 3: Cross multiply
    99,077.00x = 148,428.65 × 76,781.39
  4. Step 4: Simplify right side
    99,077.00x = 11,396,557,512.63
  5. Step 5: Solve for x
    x = 11,396,557,512.63/99,077.00
  6. Step 6: Final answer
    x = 115,027.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.